Indexing Native Application Data

ABSTRACT

Methods, including computer programs encoded on a computer storage medium, for indexing native application data. In one aspect, a method includes: receiving, by a search engine and from a mobile device, a set of data that is generated by a native application on the mobile device, the set of data including (i) data that identifies the native application, (ii) a representation of viewed content, (iii) a link to the viewed content that, when selected, launches the viewed content in the native application; storing, by the search engine, (i) the data that identifies the native application, and (ii) the link to the viewed content in association with the viewed content; and using the stored set of data in generating a search result that (i) references the viewed content, and (ii) includes the link to the viewed content that, when selected, launches the viewed content in the native application.

CROSS REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. application Ser. No.16/142,684, filed Sep. 26, 2018, which application is a continuation ofU.S. application Ser. No. 14/926,253, filed Oct. 29, 2015, the contentsof which are incorporated by reference herein.

FIELD

The present specification relates to search engines.

BACKGROUND

Digital content available over the Internet is often consumed by userson mobile devices. For example, mobile devices include nativeapplications that provide users with access to digital content. Theconsumption of digital content is one type of user behavior that can beused to improve the accuracy of search results provided to users.

SUMMARY

In general, one innovative aspect of the subject matter described inthis specification can be embodied in methods that make nativeapplication content that is accessed by a user available to a searchengine. For example, in response to receiving a search query that isrelated to the viewed content, the search engine may generate searchresults that include references to the viewed content. In particular,the search engine may access a set of data associated with the nativeapplication content within an index, and in response to receiving thesearch query, the search engine may use the stored set of data togenerate a search results page that references the viewed content, andprovides a link to the viewed content that, when enabled, launches thenative application.

For situations in which the systems discussed here collect personalinformation about users, or may make use of personal information, theusers may be provided with an opportunity to control whether programs orfeatures collect personal information, e.g., information about a user'ssocial network, social actions or activities, profession, a user'spreferences, or a user's current location, or to control whether and/orhow to receive content from the viewed content server that may be morerelevant to the user. In addition, certain data may be anonymized in oneor more ways before it is stored or used, so that personallyidentifiable information is removed. For example, a user's identity maybe anonymized so that no personally identifiable information can bedetermined for the user, or a user's geographic location may begeneralized where location information is obtained, such as to a city,zip code, or state level, so that a particular location of a user cannotbe determined. Thus, the user may have control over how information iscollected about him or her and used by a content server.

Implementations may include one or more of the following features. Forexample, receiving, by a search engine and from a mobile device, a setof data that is generated by a native application on the mobile device,the set of data including (i) data that identifies the nativeapplication, (ii) a representation of viewed content, and (iii) a linkto the viewed content that, when selected, launches the viewed contentin the native application; storing, by the search engine, (i) the datathat identifies the native application, and (ii) the link to the viewedcontent, in association with the viewed content; and using the storedset of data in generating a search result that (i) references the viewedcontent, and (ii) includes the link to the viewed content that, whenselected, launches the viewed content in the native application.

Other versions include corresponding systems, and computer programs,configured to perform the actions of the methods encoded on computerstorage devices.

One or more implementations may include the following optional features.For example, in some implementations, the representation of viewedcontent includes keywords from the viewed content, or an identifierassociated with the viewed content.

In some implementations, the representation of viewed content includeskeywords from the viewed content, or an identifier associated with theviewed content.

In some implementations, the access control list specifies whether theviewed content is classified as private content or public content.

In some implementations, the link to the viewed content includes a deeplink.

In some implementations, using the stored set of data in generating thesearch result includes: receiving, from a mobile device, a search query;identifying the viewed content as responsive to the search query;determining that the native application is installed on the mobiledevice; and in response to determining that the native application isinstalled on the mobile device, generating a search result that (i)references the viewed content, and (ii) includes the link to the viewedcontent that, when selected, launches the viewed content in the nativeapplication.

Particular implementations of the subject matter described in thisspecification may be implemented so as to realize one or more of thefollowing advantages. For example, information stored in the applicationpage index of native application pages may be taken from actualapplication page data, and may thus provide a more comprehensivedescription of application content than is provided by metadata that isexternal to the native application and that describes the nativeapplication. This, in turn, may provide a search engine with the abilityto determine relevance measures that are more accurate than relevancemeasures based on the metadata describing the native application. Inparticular, the application page index of native application pages mayprovide a search engine with the capability of surfacing search resultsfor native applications that take into account the actual data providedwithin the application pages of the native application. This may bepotentially more accurate than relying solely on metadata that isdescriptive of a native application, such as a title and description ofthe native application, and may also relieve content publishers ofperforming search engine optimizations on the metadata to ensure thatthe native applications are identified in response to particularqueries.

Implementations in which application page data are accessed in binaryform may reduce the likelihood of descriptive errors that may resultwhen using techniques that derive such data, such as optical characterrecognition errors. In addition, accessing the data in binary form mayalso identify data that would otherwise be hidden from a viewport, suchas in the case in which a scrollable element must be actuated to movethe viewport within an application environment. That collection ofapplication page data may use the native application as a source of theapplication page data, and thus collection of data describing theapplication may be accomplished in a more timely manner than bycollecting metadata from multiple different websites. Likewise, thecollection of application page data in this manner may be more scalablethan collecting metadata from multiple different websites.

The details of one or more implementations are set forth in theaccompanying drawings and the description below. Other potentialfeatures and advantages will become apparent from the description, thedrawings, and the claims.

Other implementations of these aspects include corresponding systems,apparatus and computer programs, configured to perform the actions ofthe methods, encoded on computer storage devices.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an exemplary system that may be used for indexingnative application data.

FIG. 2 illustrates exemplary process that may be used for indexingnative application data.

FIG. 3 is a block diagram of computing devices on which the processesdescribed herein, or portions thereof, may be implemented.

In the drawings, like reference numbers represent corresponding partsthroughout.

DETAILED DESCRIPTION

According to one general implementation, given that content consumptionon native applications has significantly increased with the increase ofavailable content on mobile devices, a search engine may access useractivity data generated by these native applications. Specifically, inaddition to user activity data such as previously submitted searchqueries, content accessed through web browsers, or user responses topresented search results, a search engine may access user activity datagenerated by native applications that operate independently of searchengines. Such user activity data, when considered by search engines,allows search results to be generated to reflect significant portions ofuser activity on mobile devices, which improving search queryperformance.

Accordingly, techniques are described for making native applicationcontent available to a search engine for generating search results inresponse to a subsequent search query that is related to the nativeapplication content. In particular, the search engine may store a set ofdata associated with the native application content within an index, andin response to receiving a related search query, use the stored set ofdata to generate a set of search results that references the viewedcontent and provide a link to the viewed content that, when enabled,launches the native application.

As used herein, a native application may generate application pages fordisplay on a mobile device within an environment of the nativeapplication, and may operate independently of a browser application onthe mobile device. For example, a native application may be anapplication that is specifically designed to run on a particular mobiledevice operating system and machine firmware. Native applications thusdiffer from browser-based applications and browser-rendered resources.The latter may require all, or at least some, elements or instructionsdownloaded from a web server each time they are instantiated orrendered. In addition, browser-based applications and browser-renderedresources may be processed by all web-capable mobile devices within thebrowser and thus, are not operating system specific.

To index data for a native application, the system may instantiate avirtual machine that emulates an operating system operating on a mobiledevice. Within the virtual machine, the system may instantiate a nativeapplication that is specific to the operation system. For instance, thenative application may generate application pages for display on amobile device within the native application, and operate independentlyof a browser application on the mobile device.

The system may access, within the virtual machine, application pages ofthe native application. For instance, the system may access the pagesusing an automated process that explores various menus and selectionoptions for each application page and each subsequent application page.Alternatively, the system may access particular application pages thatare specified by a particular publisher of the native application.

For each of the application pages, the system may generate applicationpage data describing content of the application page. The viewed contentdescribed by the application page data may include, for example, textthat a mobile device displays on the application page when the mobiledevice displays the application page, image data that defines an imageof the application page that would be rendered in the nativeapplication, listing/menu data that describes various lists and menus ofthe application page, or other data that describes other features of theapplication page.

The application pages for the native application may be indexed in anindex that is searchable by a search engine. For instance, the searchengine may combine web resource search results that reference webresources that may be rendered in a browser application on a mobiledevice, and native application search results that specify the nativeapplication. The native application search results may be generated, inpart, in response to a search of index of the application pages fornative applications.

Operation of the system that indexes application page data and theprocessing of search results for application pages is described in moredetail below.

FIG. 1 illustrates an exemplary system 100 that may be used for indexingnative application data. In general, a user 102 a uses a nativeapplication 104 a on a mobile device 106 a to access content, which maybe sent to a search engine 110 as a set of data 108 a, and stored in anindex 120. The search engine 110 may then receive a subsequent searchquery 108 b from the mobile device 106 b, and in response to thereceived search 108 b, generate a search results page 130. Another user102 b may then provide a user input 134 on a link 132 included in thesearch results page 130, which then launches native application 104 b onthe mobile device 106 b.

In more detail, the mobile devices 106 a-106 b may be any type of mobilecomputing devices that include mobile operating systems such as, forexample, smartphones, tablet computers, or laptop computers. The nativeapplications 104 a-104 b may be mobile applications that are installedon computer-readable storage mediums of the mobile devices 106 a-106 b,respectively, and configured to be executed on the operating systems ofthe mobile devices 106 a-106 b. For example, the native applications 104a-104 b may be either be applications that are included within theoperating systems of the mobile devices 106 a-106 b, e.g., an emailapplication, a messaging application, or applications that are installedfrom an application store, e.g., a third-party news reader application.In some instances, the native applications 104 a-104 b may also beprovided by content providers to enable the users 102 a-102 b to accessthe viewed content that is displayed by the native applications 104a-104 b, respectively.

In some implementations, the native application 104 a may extract datathat includes representations of the viewed content that is accessed bythe user 102 a on the native application 104 a. The representations ofthe viewed content may include keywords that are extracted from theviewed content, or a hyperlink that directs a user 102 a to a display ofthe viewed content on the native application 104 a. For example, in someinstances, the keywords may be commonly occurring terms within theviewed content that may be used to identify the viewed content. In otherinstances, the hyperlink may be a deep link that transmits instructionsto the mobile device 106 a to execute the native application 104 a toshow the viewed content.

In some implementations, the set of data 108 may additionally includeuser information for the user 102 a. The user information may include ahardware device identifier of the mobile device 106 a, accountinformation that is related to a user account or subscription to thenative application 104 a, or other types of information that enable thesearch engine 110 to associate the set of data 108 with the user 102 a.For example, in some instances, demographic information related to theuser 102 a may be collected to aggregate data that is collected fromparticular types of content that are available over the nativeapplication 104 a.

In some implementations, the set of data 108 may additionally include anaccess control list that specifies, for example, whether the viewedcontent that is accessed by the user 102 a should be classified asprivate content or public content. For instance, the access control listmay identify particular users and specify access rights allowed, denied,or audited for each user. For example, data that is classified asprivate may include identifying user information such as account loginsand passwords, payment information, or other types of information theuser 102 a wishes to keep private. In other examples, data that isclassified as public may include information that may be used toaggregate user activity data from multiple users that access particularcontent on the native application 104 a. For instance, data thatindicates the articles were read by the user 102 a, or search queriesthat were provided by the user 102 a on the native application 104 a maybe used to aggregate data from multiple users to determine user activitypatterns related to the viewed content on the native application 104 a.

As shown in the example in FIG. 1 , the user 102 a may view news-relatedcontent on the native application 104 a, which may be a news readerapplication that provides the user 102 a with news articles from digitalpublishes. As depicted, the user 102 b may use the news readerapplication read an article with the title “Life on Mars finally areality.” The news reader application may gather the set of data 108 arepresenting user activity on the native application 104 a such asinformation related to the news articles that are accessed by the user102 a.

The search engine 110 may be a software system that includes a searchinfrastructure for receiving the set of data 108 related to content onthe native application 104 a and designed to search for information onthe Internet based on the received set of data 108 a and search query108 b. For instance, the search engine may be coupled to the searchinfrastructure through a network that is coupled with the mobile devices106 a-106 b. The search engine 110 may be implemented in software,firmware, hardware, or any combination. For example, in someimplementations, the search engine 110 may be integrated into a serverthat can communicate with or is part of a web server (not shown). Insuch implementations, the search engine 110 may search for informationover the Internet through respective browsers running on remote clientdevices such as, for example, the mobile devices 102 a and 102 b.

The search engine 110 may access the received set of data 108 a toextract information from set of data 108 a and store the informationwithin the index 120. For instance, the search engine 110 may use commonsearch engine indexing techniques used by search engine architectures togenerate the index 120. The extracted information within the index 120may be stored in the viewed content information table 122.

As shown in the example in FIG. 1 , the viewed content information table122 may include information related to the viewed content accessed bythe user 102 a in the native application 104 a. As depicted, the viewedcontent information table 122 includes, for example, a “TIMESTAMP,”which indicates when the user 102 a accessed the viewed content in thenative application 104 a, a “LINK INFO,” which indicates thecommunication protocol used by the native application 104 a to load theviewed content, a “APP ID,” which represents a unique applicationidentifier associated with the native application 104 a, and a “CONTENTTYPE,” which classifies the type of content represented on the nativeapplication 104 a.

The search engine 110 may also receive search queries from users. Forinstance, as shown in the example in FIG. 1 , the search engine 110receives a search query 108 b for the term “PLANET,” which is sent fromthe user 102 b using the mobile device 106 b. In response to receivingthe search query 108 b, the search engine 110 may determine, based oncomparing the terms included in the search query 108 b to theinformation included in the index 120, information within the viewedcontent information table 122 that is relevant to the terms included inthe search query 108 b. For example, as depicted, the search engine 110may determine that the viewed content represented on the nativeapplication 104 a is relevant to the search query 108 b “PLANET” becausethe viewed content information table 122 indicates that the title of thenews article “Life on Mars finally a reality” includes the related term“MARS.” The search engine 110 may then generate a search results page130 on the mobile device 106 b in response to receiving the search query108 b. For instance, the search results page 130 may be shown on a webbrowser on the mobile device 106 b.

As shown in example in FIG. 1 , the search results page 130 includesreferences to the viewed content in the native application 104 a basedon the search engine 110 determining that the search query 108 isrelated to the information included in the viewed content informationtable 122 of the index 120. The search results page 130 includes thelink 132, which may be activated by the user input 134. For instance,the user input 134 may include, for example, a “one-click” using a mouseor a touch input over the text of the link 132. Once the link 132 isactivated, the mobile device 106 b launches the viewed content in thenative application 104 b.

In some implementations, the link 132 may be a deep link with embeddedinformation that provides a set of computer-implemented instructions tothe mobile device 106 b to launch the native application 104 b to depictcontent associated with information included in the viewed contentinformation table 122.

In some implementations, the search engine 110 may perform additional oralternative operations related to the native application 104 b inresponse to receiving the search query 108 b. For instance, the searchengine 110 may initially determine if the viewed content in the viewedcontent information table 112 is responsive to the search query 108 b,and in response to determining that the viewed content is responsive tothe search query 108 b, generating the search results page 130. In suchinstances, the search engine 110 may only include the link 132 in thesearch results page 130 if the viewed content is determined to beresponsive to the search query 108 b. For example, if the search query108 b does not include terms that are related to the information withinthe viewed content information table 122, the search engine may ignorethe set of data 108 a within index 120 in generating the search resultspage 130.

As shown in the example in FIG. 1 , the search results page 130 includesa hyperlink to the “News Reader” native application that shows the newsarticle content with the title “Life on Mars finally a reality.” Afterreceiving a user input activating the hyperlink, the mobile device 106 bmay then launch the “News Reader” native application to show the newsarticle “Life on Mars finally a reality.” As depicted in the example,the system 100 may be used to associate a common news article contentthat may be of interest between the users 102 a and 102 b, based on thesearch engine 110 receiving data indicating that the users 102 a and 102b may be interested in similar topics related to space.

In some implementations, after the user 102 b activates the link 132,the mobile device 106 b may then transmit a set of data 108 c to thesearch engine 110, which may then update the viewed content informationtable 112 for the shared content between the native applications 104 aand 104 b. In such implementations, the search engine 110 mayrecursively generate the index 120 after subsequent users access theassociate the viewed content to collect aggregated information of theviewed content based on content by multiple users.

In some instances, the native application 104 b may be a differentapplication from the native application 104 a that displays the samecontent. In such instances, the viewed content may be provided by acontent provider on different types of native applications that run onmobile devices. For example, the viewed content may be a news articlethat is published on multiple mobile platforms and accessed by variousnative applications.

In some instances where the native application 104 b is not installed onthe mobile device 106 b when the user 102 b activates the link 132, thesystem 100 may instead determine another compatible platform to displaythe associated content. For the example in FIG. 1 , instead of themobile device 106 b running the native application 104 b, the mobiledevice 106 b may instead display the news article on a web browserapplication on the mobile device 106 b.

FIG. 2 illustrates exemplary process 200 that may be used for indexingnative application data. Briefly, the process 200 may include receivinga set of data (210), storing the set of data (220), and using the storedset of data (230).

In more detail, the process 200 may include receiving a set of data(210). For example, the search engine 110 may receive, from the mobiledevice 106 a, a set of data 108 a that is generated by the nativeapplication 104 a on the mobile device 106 a. The set of data 108 a mayinclude data that identifies the native application 104 a, arepresentation of viewed content, and a link to the viewed content that,when selected, launches the viewed content in the native application 104a. For instance, as shown in FIG. 1 , the viewed content may be newsarticle that is displayed on the native application 104 a, which may bea news reading application.

The process 200 may include storing the set of data (220). For example,the search engine 110 may store the data that identifies the nativeapplication 104 a, and the link to the viewed content, in associatedwith the viewed content. For instance, as shown in FIG. 1 , the index120 may include the viewed content information table 122, which includesinformation from the received set of data 108 a. For example, theinformation may include a timestamp represented when the user 102 aaccessed the viewed content, information related to the link to theviewed content, a native application identifier that identifies thenative application 104 a, or a classification of the viewed content.

The process 200 may include using the stored set of data (230). Forexample, the search engine 110 may use the stored set of data on theindex 120 in generating a search results page 130 in response to asearch query, for example, the search query 108 b from the mobile device108 b. For instance, the search results page 130 may reference theviewed content, and may include the link 132 that, when selected,launches the viewed content in the native application 104 b. The usermay select the link 132 using the user input 134. In some instances,after the user input 134, the set of data 108 c may be transmitted tothe search engine 110, which then updates the index 120 after the mobiledevice 106 b accesses the native application 104 b.

FIG. 3 is a block diagram of computing devices 300 that may be used toimplement the systems and methods described in this document, as eithera client or as a server or plurality of servers. Computing device 300 isintended to represent various forms of digital computers, such aslaptops, desktops, workstations, personal digital assistants, servers,blade servers, mainframes, and other appropriate computers.

Computing device 300 includes a processor 302, memory 304, a storagedevice 306, a high-speed interface 308 connecting to memory 304 andhigh-speed expansion ports 310, and a low speed interface 312 connectingto low speed bus 314 and storage device 306. Each of the components 302,304, 306, 308, 310, and 312, are interconnected using various busses,and may be mounted on a common motherboard or in other manners asappropriate. The processor 302 can process instructions for executionwithin the computing device 300, including instructions stored in thememory 304 or on the storage device 306 to display graphical informationfor a GUI on an external input/output device, such as display 316coupled to high speed interface 308. In other implementations, multipleprocessors and/or multiple buses may be used, as appropriate, along withmultiple memories and types of memory. Also, multiple computing devices300 may be connected, with each device providing portions of thenecessary operations, e.g., as a server bank, a group of blade servers,or a multi-processor system.

The computing device 300 may be implemented in a number of differentforms, as shown in the figure. For example, it may be implemented as astandard server 320, or multiple times in a group of such servers. Itmay also be implemented as part of a rack server system 324. Inaddition, it may be implemented in a personal computer such as a laptopcomputer 322. Alternatively, components from computing device 300 may becombined with other components in a mobile device (not shown). Each ofsuch devices may contain one or more of computing device 300 and anentire system may be made up of multiple computing devices 300communicating with each other.

Various implementations of the systems and methods described here can berealized in digital electronic circuitry, integrated circuitry,specially designed ASICs (application specific integrated circuits),computer hardware, firmware, software, and/or combinations of suchimplementations. These various implementations can includeimplementation in one or more computer programs that are executableand/or interpretable on a programmable system including at least oneprogrammable processor, which may be special or general purpose, coupledto receive data and instructions from, and to transmit data andinstructions to, a storage system, at least one input device, and atleast one output device.

The systems and techniques described here can be implemented in acomputing system that includes a back end component, e.g., as a dataserver, or that includes a middleware component, e.g., an applicationserver, or that includes a front end component, e.g., a client computerhaving a graphical user interface or a Web browser through which a usercan interact with an implementation of the systems and techniquesdescribed here, or any combination of such back end, middleware, orfront end components. The components of the system can be interconnectedby any form or medium of digital data communication, e.g., acommunication network. Examples of communication networks include alocal area network (“LAN”), a wide area network (“WAN”), and theInternet.

A number of embodiments have been described. Nevertheless, it will beunderstood that various modifications may be made without departing fromthe spirit and scope of the invention. In addition, the logic flowsdepicted in the figures do not require the particular order shown, orsequential order, to achieve desirable results. In addition, other stepsmay be provided, or steps may be eliminated, from the described flows,and other components may be added to, or removed from, the describedsystems. Accordingly, other embodiments are within the scope of thefollowing claims.

What is claimed is: 1.-13. (canceled)
 14. A computing system comprising:one or more processors; one or more non-transitory computer readablemedia that collectively store instructions that, when executed by theone or more processors, cause the computing system to performoperations, the operations comprising: executing, on a mobile deviceassociated with a particular user, a particular native application;storing, via the mobile device, a set of data that is generated by theparticular native application on the mobile device, the set of dataincluding (i) data that identifies the particular native application,and (ii) a representation of viewed content, the viewed content beingcontent that was displayed by the particular native application on themobile device; executing, on the mobile device, a second applicationthat is different from the particular native application; receiving aquery as input in the second application at the mobile device;determining, based on the query, one or more search results that includeat least one search result that references the viewed content, the atleast one search result having been generated in response to a query bythe particular user and the set of data generated by the nativeapplication; and displaying, at the mobile device, the search results.15. The computing system of claim 14, wherein the one or more searchresults are provided via a search results page, wherein the searchresults page comprises the at least one search result having beengenerated in response to a query by the particular user and the set ofdata generated by the native application and one or more other searchresults associated with one or more web resources.
 16. The computingsystem of claim 14, wherein the at least one search result includes alink to the viewed content that, when selected, launches the viewedcontent in the particular native application.
 17. The computing systemof claim 14, wherein the mobile device comprises computer hardware,including a communication system, a processor system, and aninput/output system.
 18. The computing system of claim 14, wherein theoperations further comprise: storing a link to the viewed content. 19.The computing system of claim 18, wherein the operations furthercomprise: obtaining a selection of the at least one search result; andnavigating to the viewed content of the particular native applicationbased at least in part on the link.
 20. The computing system of claim14, wherein the representation of viewed content comprises an identifierassociated with the viewed content.
 21. The computing system of claim14, wherein the representation of viewed content comprises one or morekeywords from the viewed content.
 22. The computing system of claim 14,wherein the second application comprises a search application.
 23. Thecomputing system of claim 14, wherein receiving the query as input inthe second application comprises receiving the input via a query inputbox of a user interface.
 24. The computing system of claim 14, whereinthe particular native application comprises a messaging application. 25.A computer-implemented method, the method comprising: executing, on amobile device associated with a particular user, a particular nativeapplication, wherein the mobile device comprises one or more processors;storing, via the mobile device, a set of data that is generated by theparticular native application on the mobile device, the set of dataincluding (i) data that identifies the particular native application,and (ii) a representation of viewed content, the viewed content beingcontent that was displayed by the particular native application on themobile device; executing, on the mobile device, a second applicationthat is different from the particular native application; receiving aquery as input in the second application at the mobile device;determining, based on the query, one or more search results that includeat least one search result that references the viewed content, the atleast one search result having been generated in response to a query bythe particular user and the set of data generated by the nativeapplication; and displaying, at the mobile device, the search results.26. The method of claim 25, further comprising: storing, via the mobiledevice, a content type associated with the viewed content.
 27. Themethod of claim 26, wherein displaying the search results comprisedisplaying the content type associated with the viewed content.
 28. Themethod of claim 25, wherein the viewed content comprises an internetcontent item obtained via an internet connection.
 29. The method ofclaim 25, further comprising: storing metadata associated with theparticular native application, wherein the metadata comprises a title ofthe particular native application; and wherein the title is provided fordisplay with the at least one search result.
 30. One or morenon-transitory computer-readable media that collectively storeinstructions that, when executed by one or more computing devices, causethe one or more computing devices to perform operations, the operationscomprising: executing a particular native application; storing a set ofdata that is generated by the particular native application on a mobiledevice, the set of data including (i) data that identifies theparticular native application, and (ii) a representation of viewedcontent, the viewed content being content that was displayed by theparticular native application on the mobile device; executing a secondapplication that is different from the particular native application;receiving a query as input in the second application at the mobiledevice; determining, based on the query, one or more search results thatinclude at least one search result that references the viewed content,the at least one search result having been generated in response to aquery and the set of data generated by the native application; anddisplaying the search results.
 31. The one or more non-transitorycomputer-readable media of claim 30, wherein the particular nativeapplication comprises a messaging application, and wherein the secondapplication comprises a search application.
 32. The one or morenon-transitory computer-readable media of claim 30, wherein the set ofdata is stored in a user-specific database.
 33. The one or morenon-transitory computer-readable media of claim 30, wherein the searchresults comprise one or more native application search results and oneor more web resource search results.